The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 2004
Filed:
Jan. 26, 2001
Koji Katayama, Kanagawa, JP;
Tosoh Corporation, Yamaguchi-ken, JP;
Abstract
A flying optical recording/playback head for near-field optical recording/playback, which is capable of keeping the flying height of an optical lens to be constant and obtaining a stable playback signal, is provided. In the flying optical recording/playback head, a device for controlling the relative position between a slider and the optical lens based on a thermal expansion or a piezoelectric effect of an optical lens supporting member for holding the optical lens on the slider, or a thermal expansion of a portion of the optical lens.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile